先简支后连续桥梁上部结构的施工

Superstructure construction of continuous bridge erected as simple supported beam

以郑少高速公路慕家沟特大桥为例,阐述了先简支后连续的桥梁施工方法,介绍了简支转连续结构时的施工技术,指出施工中的注意事项,总结出经验和体会。

Taking the Mujiagou bridge work in Zhengshao expressway as example the construction method of continuous bridge erected as simple supported beam is briefly introduced as well as the construction technology to transform simple-supported systems to continuous system. The points for attention in construction are presented. In the end some experiences are summarized.